1) -3
2)5.07
3)2 4/25 или 2.16
4)-2/15
1)-8х=72
х= 72:(-8)
х= -9
2)0.9х =-5.4
х= -5.4 : 0.9
х= -6
3)-1.7х = -5.1
х= -5.1 :(-1.7)
х= 3
4)1/9: х= -8/27
х= 1/9 : (-8/27)
х= -3/8
5)-2/7х= -1/6
х = -1/6:(-2/7)
х=7/12
6)-3 4/7х= 25/28
х= 25/28 : (-3 4/7)
х= -1/4
1) 4.2 *(-7) - 9.3 :(5.8 - 8.9)= 29.4 - (-3) = 29.4+3 = 32.4
2)(-2.3-3.91 :(-2.3)) : (-0.01) : (-0.4) =( -2.3 -(-1.7)) : (0.01) : (-0.4) = -0.6 : (-0.01) : (-0.4)= 60 :(-0.4) = -150
1) 19/60 : (-38/45) = -3/8
2)(11/16 + 17/24) : (-5 7/12)= 1 19/48 : (-5 7/12) = -1/4
3) 1/30:(-1/18) = -3/5
4)17 6/7
1) -3
2)5.07
3)2 4/25 или 2.16
4)-2/15
1)-8х=72
х= 72:(-8)
х= -9
2)0.9х =-5.4
х= -5.4 : 0.9
х= -6
3)-1.7х = -5.1
х= -5.1 :(-1.7)
х= 3
4)1/9: х= -8/27
х= 1/9 : (-8/27)
х= -3/8
5)-2/7х= -1/6
х = -1/6:(-2/7)
х=7/12
6)-3 4/7х= 25/28
х= 25/28 : (-3 4/7)
х= -1/4
1) 4.2 *(-7) - 9.3 :(5.8 - 8.9)= 29.4 - (-3) = 29.4+3 = 32.4
2)(-2.3-3.91 :(-2.3)) : (-0.01) : (-0.4) =( -2.3 -(-1.7)) : (0.01) : (-0.4) = -0.6 : (-0.01) : (-0.4)= 60 :(-0.4) = -150
1) 19/60 : (-38/45) = -3/8
2)(11/16 + 17/24) : (-5 7/12)= 1 19/48 : (-5 7/12) = -1/4
3) 1/30:(-1/18) = -3/5
4)17 6/7